The part that provides color (usually azo, anthraquinone, or phthalocyanine groups). Solubilising Group: Often sulfonic acid salts ( SO3Nacap S cap O sub 3 cap N a ) that make the dye water-soluble.
Excellent, because the dye is chemically locked to the fibre. The Chemistry of Synthetic Dyes. Reactive Dyes
Known for incredibly vivid and brilliant shades. The part that provides color (usually azo, anthraquinone,
While reactive dyes are safer than many older synthetics (like those using heavy metals), they require large amounts of salt and water for the fixation and rinsing processes. Modern research focuses on "low-salt" dyes and increasing the to reduce chemical waste. The Chemistry of Synthetic Dyes. Reactive Dyes